CAJ | 학술논문

由于行波型旋转超声电机（travelingwaverotaryultrasonicmotor，TRUM）存在着诸多非线性因素，双定转子TRUM中的双路行波输出性能还有待提高。基于单定转子TRUM理论，研究了双路行波运行的轴向组合振动特性和周向合成输出特性，分析了单转轴一双转子结构体的轴向振动模型，由于该结构体阻尼减振的不足，提出一种隔振设计解决方案。建立了双路行波周向合成的输出模型，并探讨了两路行波不一致时的输出特点。实验结果表明，与单定转子TRUM相比，基于隔振结构的新型双定转子TRUM的输出转矩提高了80％，功率密度提高了43．1％，且双路行波输出转矩的合成效率达到90％。该研究为扩展TRUM的应用范围提供了参考。
유우행파형선전초성전궤（travelingwaverotaryultrasonicmotor，TRUM）존재착제다비선성인소，쌍정전자TRUM중적쌍로행파수출성능환유대제고。기우단정전자TRUM이론，연구료쌍로행파운행적축향조합진동특성화주향합성수출특성，분석료단전축일쌍전자결구체적축향진동모형，유우해결구체조니감진적불족，제출일충격진설계해결방안。건립료쌍로행파주향합성적수출모형，병탐토료량로행파불일치시적수출특점。실험결과표명，여단정전자TRUM상비，기우격진결구적신형쌍정전자TRUM적수출전구제고료80％，공솔밀도제고료43．1％，차쌍로행파수출전구적합성효솔체도90％。해연구위확전TRUM적응용범위제공료삼고。
Due to many nonlinear factors of traveling wave rotary ultrasonic motor （TRUM）, dual traveling wave operation of TRUM with two stators and two rotors was inadequate. Based on the theory of TRUM with single stator and single rotor, axial vibration combination and circumferential performance synthesis of dual traveling wave were respectively researched. The axial vibration model of single axis and double rotors was analyzed, then a design solution for vibration isolation was proposed. The circumferential performance synthesis model of dual traveling wave was established, and the characteristics of two inconsistent waves were discussed. The results show that the dual traveling wave operation with vibration isolation structure has obvious advantages to the single one： output torque is increased by 80% and power density is increased by 43.1%. And the torque synthesis efficiency of dual traveling wave operation is up to 90%. These researches offer theoretical basis and design approach to extend the applications of TRUM.